The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 26, 2024

Filed:

Oct. 30, 2023
Applicant:

Lutron Technology Company Llc, Coopersburg, PA (US);

Inventors:

Russell L. MacAdam, Coopersburg, PA (US);

Joseph T. Parent, Bethlehem, PA (US);

Russell Weightman, Abington, PA (US);

Assignee:

Lutron Technology Company LLC, Coopersburg, PA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 39/04 (2006.01); H05B 45/10 (2020.01); H05B 45/31 (2020.01); H05B 45/3575 (2020.01); H05B 45/38 (2020.01); H02M 1/00 (2006.01); H02M 5/257 (2006.01); H05B 45/50 (2022.01); H05B 45/59 (2022.01);
U.S. Cl.
CPC ...
H05B 39/044 (2013.01); H05B 45/10 (2020.01); H05B 45/31 (2020.01); H05B 45/3575 (2020.01); H05B 45/38 (2020.01); H02M 1/0006 (2021.05); H02M 5/2576 (2013.01); H05B 45/50 (2020.01); H05B 45/59 (2022.01);
Abstract

A load control device for controlling power delivered from an AC power source to an electrical load may comprise a thyristor, a gate current path, and a control circuit. The control circuit may be configured to control the gate current path to conduct a pulse of gate current through a gate terminal of the thyristor to render the thyristor conductive at a firing time during a half-cycle of the AC power source. The control circuit may operate in a first gate drive mode in which the control circuit renders the gate current path non-conductive after a pulse time period from the firing time. The control circuit may operate in a second gate drive mode in which the control circuit maintains the gate current path conductive after the pulse time period during the half-cycle.


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